Battery filling means



E. C- IWANOWSKI BATTERY FILLING MEANS Feb. 27, 1951 Filed July 25, 1949EdZgana INVENTOR. 21/5 761 M ATTORNEYS Patented Feb. 27, 1951 UNITEDSTATES" PATENT OFFICE Edi.

Application July 25, 1949, gerial No. 106,668

2 Claims. (01. 136-162) This invention relates to a battery fillingmeans.

An object of this invention is to provide a device whereby the liquidlevel in a battery cell may be maintained at all times.

Another object of this invention is to provide a fountain supply meansfor. a battery cell whereby the liquid level will be automaticallymaintained.

A further object of this invention is to provide a device of this kindfor mounting in a battery cell cap, or on the upper cell plate onthebattery, which includes a transparent reservoir so that the availablewater supply will be visibl from above the battery.

With the above and other objects in view, my invention consists in thearrangement, combination and details of construction disclosed in thedrawing and specification, and then more particularly pointed out in theappended claims.

In the drawing,

Figure 1 is a plan view of a battery filling means constructed accordingto an embodiment of this invention.

Figure 2 is a section view taken on the line 2-2 of Figure 1.

' Referring to the drawing, the numeral l designates generally areservoir or housing which is formed of a cylindrical side wall il, acap or closure l2 at the upper end of the side wall II, and a bottomwall l3 at thelower end of the side wall II. The cap I! may be threadedor otherwise secured to the top ofthe side wall H so that water may bedischarged into the res ervoir or housing l0. Preferably the housing I0is of transparent characteristic so that the level of water within thehousing or reservoir is readily visible from the exterior.

The bottom wall l3 has extending downwardly from the axial centerthereof a tube l4 which in the present instance tapers downwardly and isprovided at its lower end with an end wall I5. The tube I4 is formedwith one or more outlet openings I6 which are positioned above thebottom l so that water can gravitatingly flow into the interior of abattery cell to substantially the level indicated at IT. The tube Itextends through and is fixed centrally in a threaded cap l8 which isthreaded through the top wall ill of a battery cell.

A vent tube is disposed within the tube I4,

' fluid level II. The vent tube 20 at its upper portion is provided witha. laterally extending extension 23 whichextends along the upper orinner side of the bottom wall l3 and is extended as indicated at 24,through the bottom wall IS. The tube 20 provides a means ofcommunicating the space 22 with the atmosphere and prevents the leakageof water or battery fluid from the tube v I 4 and from the battery.

, described, each cell may be provided with a separate water reservoirso that the water will gravitatingly flow into the cell to maintain theproper liquid level within the cell. By providing the housing orreservoir of transparent characteristic, the water level within thereservoir or housing III is readily visible so that this water level canbe maintained at a predetermined height without removing the device fromthe top of the battery.

I do notmean to confine myself to the exact details of constructionherein disclosed, but claim all variations falling within the purview ofthe appended claims.

What I claim is: V

1. A battery filling means comprising a cylindrical housing adapted toreceive water, having a transparent cylindrical side wall, a cap on theupper end of said side wall, a bottom wall secured to the lower end ofsaid side wall, a tapered tube extending downwardly from said bottomwall having a closed lower end and an outlet and filling opening abovesaid lower end, a battery cap having a tapered aperture thereinsurrounding and fixed to said tube between the ends of the latter,having vent tube extending lengthwise extending lengthwise thereof andis formed at municates with the space 22 above the battery along theinterior of the side wall of said first named tube and formed at itsupper end with a bend overlying said bottom wall, the "lower end of saidvent tube extending through said first named tapered tube between saidopening, and said battery cap and the upper end of said vent tubeextending through said bottom wall whereby the air space above thebattery liquid will be in communication with the atmosphere,

2. A storage battery venting and electrolyte level regulating device fora storage battery having a tapered top opening of downwardly decreasinginternal cross section, said device comprising a closed top, upstandingliquid container having a bottom wall, a tapered flow control tube ofdownwardly decreasing external cross section depending from said bottomwall, said tube having a closed lower end and being perforated at aportion adjacent said end thereby to provide an outlet for liquid fromsaid container into said battery to maintain the electrolyte leveltherein at said perforated portion, a vent tube having a lower portionextending longitudinally within and along a side of said first tube andan upper portion extending into said container and being bent therein tooverlie said bottom wall, said tube having an upper and a lower openend, said upper vent tube end extending through said bottom wall to opendownwardly to the atmosphere outside said battery and said lower venttube end extending through said first tube appreciably above saidperforated portion thereof to open into the space within said batteryabove the elec trolyte level maintained therein, said vent tube endsbeing sealed through said bottom wall and said first tube. respectively,against the passage of liquid about said ends.

EDGAR C. IWANOWSKI.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

